Before we dive into the software, let's take a brief look at the Geeetech i3 Pro B itself. This Cartesian-style 3D printer boasts a sturdy frame, a heated bed, and a versatile extruder system. Its open-frame design allows for easy access and maintenance, making it an excellent choice for those who want to experiment with different printing materials and techniques.

Be aware of a few software quirks unique to this model:

The i3 Pro B typically uses a low-cost USB-to-serial chip called the CH340 (manufactured by WCH).

If you mess up the firmware, the printer won't move. Always save a copy of the original firmware (Geeetech provides a HEX file on their official download page) before flashing.